Oil and gas-rich Algeria has been struck by a string of corruption scandals, most focused on bribes paid by foreign companies for contracts, especially with state oil company Sonatrach.

Agreements with European countries had brought new cases to light, Mohamed Charfi said in remarks late Tuesday before parliament.

He said information from the three countries will allow an investigation into this international network of corruption which retreats “day by day thanks to the cooperation of countries informed by Algeria.”

Charfi added that 90 percent of those involved in the recent corruption scandal involving Italian firm Saipem and Canadian company Lavalin are known.